155244472 has 8 divisors (see below), whose sum is σ = 291083400. Its totient is φ = 77622232.

The previous prime is 155244469. The next prime is 155244487. The reversal of 155244472 is 274442551.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9702772 + ... + 9702787.

It is an arithmetic number, because the mean of its divisors is an integer number (36385425).

Almost surely, 2^155244472 is an apocalyptic number.

It is an amenable number.

155244472 is a deficient number, since it is larger than the sum of its proper divisors (135838928).

155244472 is a wasteful number, since it uses less digits than its factorization.

155244472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19405565 (or 19405561 counting only the distinct ones).

The product of its digits is 44800, while the sum is 34.

The square root of 155244472 is about 12459.7139614038. The cubic root of 155244472 is about 537.4508014821.

It can be divided in two parts, 1552444 and 72, that added together give a square (1552516 = 1246²).

The spelling of 155244472 in words is "one hundred fifty-five million, two hundred forty-four thousand, four hundred seventy-two".