1373252166 has 48 divisors (see below), whose sum is σ = 3495557520. Its totient is φ = 384125760.

The previous prime is 1373252159. The next prime is 1373252173. The reversal of 1373252166 is 6612523731.

1373252166 is a `hidden beast` number, since 1 + 3 + 73 + 2 + 521 + 66 = 666.

It is an interprime number because it is at equal distance from previous prime (1373252159) and next prime (1373252173).

It is a super-2 number, since 2×1373252166² = 3771643022847383112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1373252166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264181 + ... + 269328.

It is an arithmetic number, because the mean of its divisors is an integer number (72824115).

Almost surely, 2^1373252166 is an apocalyptic number.

1373252166 is an abundant number, since it is smaller than the sum of its proper divisors (2122305354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1373252166 is a wasteful number, since it uses less digits than its factorization.

1373252166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533541 (or 533538 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 1373252166 is about 37057.4171523057. The cubic root of 1373252166 is about 1111.5186760442.

Adding to 1373252166 its reverse (6612523731), we get a palindrome (7985775897).

The spelling of 1373252166 in words is "one billion, three hundred seventy-three million, two hundred fifty-two thousand, one hundred sixty-six".