155245051 has 8 divisors (see below), whose sum is σ = 167295744. Its totient is φ = 143209920.

The previous prime is 155245049. The next prime is 155245127. The reversal of 155245051 is 150542551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155245051 - 2¹ = 155245049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155245151) 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, 24615 + ... + 30271.

It is an arithmetic number, because the mean of its divisors is an integer number (20911968).

Almost surely, 2^155245051 is an apocalyptic number.

155245051 is a deficient number, since it is larger than the sum of its proper divisors (12050693).

155245051 is a wasteful number, since it uses less digits than its factorization.

155245051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7781.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 155245051 is about 12459.7371962654. The cubic root of 155245051 is about 537.4514696404.

The spelling of 155245051 in words is "one hundred fifty-five million, two hundred forty-five thousand, fifty-one".