1264250146 has 8 divisors (see below), whose sum is σ = 1899382464. Its totient is φ = 631122660.

The previous prime is 1264250123. The next prime is 1264250159. The reversal of 1264250146 is 6410524621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1264250146² = 3196656863322042632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499630 + ... + 502153.

It is an arithmetic number, because the mean of its divisors is an integer number (237422808).

Almost surely, 2^1264250146 is an apocalyptic number.

1264250146 is a deficient number, since it is larger than the sum of its proper divisors (635132318).

1264250146 is a wasteful number, since it uses less digits than its factorization.

1264250146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002416.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1264250146 is about 35556.2954482044. The cubic root of 1264250146 is about 1081.2953553051.

Adding to 1264250146 its reverse (6410524621), we get a palindrome (7674774767).

The spelling of 1264250146 in words is "one billion, two hundred sixty-four million, two hundred fifty thousand, one hundred forty-six".