155214616 has 8 divisors (see below), whose sum is σ = 291027420. Its totient is φ = 77607304.

The previous prime is 155214611. The next prime is 155214617. The reversal of 155214616 is 616412551.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155214611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9700906 + ... + 9700921.

Almost surely, 2^155214616 is an apocalyptic number.

It is an amenable number.

155214616 is a deficient number, since it is larger than the sum of its proper divisors (135812804).

155214616 is a wasteful number, since it uses less digits than its factorization.

155214616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19401833 (or 19401829 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 155214616 is about 12458.5158024542. The cubic root of 155214616 is about 537.4163458057.

The spelling of 155214616 in words is "one hundred fifty-five million, two hundred fourteen thousand, six hundred sixteen".