145411902 has 64 divisors (see below), whose sum is σ = 342144000. Its totient is φ = 45650304.

The previous prime is 145411901. The next prime is 145411907. The reversal of 145411902 is 209114541.

It is a super-2 number, since 2×145411902² = 42289242486515208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145411901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244918 + ... + 245510.

It is an arithmetic number, because the mean of its divisors is an integer number (5346000).

Almost surely, 2^145411902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145411902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171072000).

145411902 is an abundant number, since it is smaller than the sum of its proper divisors (196732098).

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

145411902 is a wasteful number, since it uses less digits than its factorization.

145411902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 145411902 is about 12058.6857492846. The cubic root of 145411902 is about 525.8557797827.

The spelling of 145411902 in words is "one hundred forty-five million, four hundred eleven thousand, nine hundred two".