155460740 has 12 divisors (see below), whose sum is σ = 326467596. Its totient is φ = 62184288.

The previous prime is 155460737. The next prime is 155460763. The reversal of 155460740 is 47064551.

It can be written as a sum of positive squares in 2 ways, for example, as 33269824 + 122190916 = 5768^2 + 11054^2 .

It is a junction number, because it is equal to n+sod(n) for n = 155460697 and 155460706.

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, 3886499 + ... + 3886538.

It is an arithmetic number, because the mean of its divisors is an integer number (27205633).

Almost surely, 2^155460740 is an apocalyptic number.

155460740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155460740 is an abundant number, since it is smaller than the sum of its proper divisors (171006856).

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

155460740 is a wasteful number, since it uses less digits than its factorization.

155460740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7773046 (or 7773044 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 155460740 is about 12468.3896313838. The cubic root of 155460740 is about 537.7002563709.

The spelling of 155460740 in words is "one hundred fifty-five million, four hundred sixty thousand, seven hundred forty".