145257102 has 24 divisors (see below), whose sum is σ = 314981784. Its totient is φ = 48379344.

The previous prime is 145257083. The next prime is 145257107. The reversal of 145257102 is 201752541.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145257107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26533 + ... + 31535.

It is an arithmetic number, because the mean of its divisors is an integer number (13124241).

Almost surely, 2^145257102 is an apocalyptic number.

145257102 is an abundant number, since it is smaller than the sum of its proper divisors (169724682).

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

145257102 is a wasteful number, since it uses less digits than its factorization.

145257102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624 (or 6621 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 145257102 is about 12052.2654302002. The cubic root of 145257102 is about 525.6691114823.

The spelling of 145257102 in words is "one hundred forty-five million, two hundred fifty-seven thousand, one hundred two".