155319456 has 48 divisors (see below), whose sum is σ = 409225824. Its totient is φ = 51581184.

The previous prime is 155319449. The next prime is 155319457. The reversal of 155319456 is 654913551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (155319457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24310 + ... + 30026.

It is an arithmetic number, because the mean of its divisors is an integer number (8525538).

Almost surely, 2^155319456 is an apocalyptic number.

155319456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155319456 is an abundant number, since it is smaller than the sum of its proper divisors (253906368).

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

155319456 is a wasteful number, since it uses less digits than its factorization.

155319456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013 (or 6005 counting only the distinct ones).

The product of its digits is 81000, while the sum is 39.

The square root of 155319456 is about 12462.7226559849. The cubic root of 155319456 is about 537.5373181950.

It can be divided in two parts, 15531945 and 6, that added together give a triangular number (15531951 = T₅₅₇₃).

The spelling of 155319456 in words is "one hundred fifty-five million, three hundred nineteen thousand, four hundred fifty-six".