155254144 has 16 divisors (see below), whose sum is σ = 309295620. Its totient is φ = 77627008.

The previous prime is 155254103. The next prime is 155254147. The reversal of 155254144 is 441452551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155254147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606334 + ... + 606589.

Almost surely, 2^155254144 is an apocalyptic number.

It is an amenable number.

155254144 is a deficient number, since it is larger than the sum of its proper divisors (154041476).

155254144 is an equidigital number, since it uses as much as digits as its factorization.

155254144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212937 (or 1212925 counting only the distinct ones).

The product of its digits is 16000, while the sum is 31.

The square root of 155254144 is about 12460.1020862592. The cubic root of 155254144 is about 537.4619626228.

It can be divided in two parts, 1552 and 54144, that added together give a square (55696 = 236²).

The spelling of 155254144 in words is "one hundred fifty-five million, two hundred fifty-four thousand, one hundred forty-four".