155230751 has 8 divisors (see below), whose sum is σ = 167868624. Its totient is φ = 142692480.

The previous prime is 155230721. The next prime is 155230771. The reversal of 155230751 is 157032551.

It is a happy number.

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 155230751 - 2⁶ = 155230687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155230721) 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 in 7 ways as a sum of consecutive naturals, for example, 21641 + ... + 27906.

It is an arithmetic number, because the mean of its divisors is an integer number (20983578).

Almost surely, 2^155230751 is an apocalyptic number.

155230751 is a deficient number, since it is larger than the sum of its proper divisors (12637873).

155230751 is a wasteful number, since it uses less digits than its factorization.

155230751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49801.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 155230751 is about 12459.1633346706. The cubic root of 155230751 is about 537.4349671454.

The spelling of 155230751 in words is "one hundred fifty-five million, two hundred thirty thousand, seven hundred fifty-one".