1252355190 has 16 divisors (see below), whose sum is σ = 3005652528. Its totient is φ = 333961376.

The previous prime is 1252355183. The next prime is 1252355197. The reversal of 1252355190 is 915532521.

It is an interprime number because it is at equal distance from previous prime (1252355183) and next prime (1252355197).

It is a super-2 number, since 2×1252355190² = 3136787043839872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252355197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20872557 + ... + 20872616.

It is an arithmetic number, because the mean of its divisors is an integer number (187853283).

Almost surely, 2^1252355190 is an apocalyptic number.

1252355190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252355190 is an abundant number, since it is smaller than the sum of its proper divisors (1753297338).

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

1252355190 is a wasteful number, since it uses less digits than its factorization.

1252355190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41745183.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 1252355190 is about 35388.6308014311. The cubic root of 1252355190 is about 1077.8934676260.

The spelling of 1252355190 in words is "one billion, two hundred fifty-two million, three hundred fifty-five thousand, one hundred ninety".