155406752 has 12 divisors (see below), whose sum is σ = 305957106. Its totient is φ = 77703360.

The previous prime is 155406749. The next prime is 155406763. The reversal of 155406752 is 257604551.

It can be written as a sum of positive squares in only one way, i.e., 153859216 + 1547536 = 12404^2 + 1244^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2428199 + ... + 2428262.

Almost surely, 2^155406752 is an apocalyptic number.

It is an amenable number.

155406752 is a deficient number, since it is larger than the sum of its proper divisors (150550354).

155406752 is an equidigital number, since it uses as much as digits as its factorization.

155406752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4856471 (or 4856463 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 155406752 is about 12466.2244484848. The cubic root of 155406752 is about 537.6380054504.

The spelling of 155406752 in words is "one hundred fifty-five million, four hundred six thousand, seven hundred fifty-two".