145155856 has 20 divisors (see below), whose sum is σ = 281513232. Its totient is φ = 72507296.

The previous prime is 145155853. The next prime is 145155859. The reversal of 145155856 is 658551541.

It is an interprime number because it is at equal distance from previous prime (145155853) and next prime (145155859).

It is not an unprimeable number, because it can be changed into a prime (145155853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15171 + ... + 22813.

Almost surely, 2^145155856 is an apocalyptic number.

145155856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145155856 is a deficient number, since it is larger than the sum of its proper divisors (136357376).

145155856 is a wasteful number, since it uses less digits than its factorization.

145155856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8838 (or 8832 counting only the distinct ones).

The product of its digits is 120000, while the sum is 40.

The square root of 145155856 is about 12048.0644088584. The cubic root of 145155856 is about 525.5469504672.

The spelling of 145155856 in words is "one hundred forty-five million, one hundred fifty-five thousand, eight hundred fifty-six".