155230061 has 16 divisors (see below), whose sum is σ = 179836800. Its totient is φ = 131243328.

The previous prime is 155230039. The next prime is 155230079. The reversal of 155230061 is 160032551.

155230061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 155230061 - 2²² = 151035757 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 (155230001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296546 + ... + 297068.

It is an arithmetic number, because the mean of its divisors is an integer number (11239800).

Almost surely, 2^155230061 is an apocalyptic number.

It is an amenable number.

155230061 is a deficient number, since it is larger than the sum of its proper divisors (24606739).

155230061 is a wasteful number, since it uses less digits than its factorization.

155230061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 155230061 is about 12459.1356441769. The cubic root of 155230061 is about 537.4341708456.

It can be divided in two parts, 1552 and 30061, that added together give a palindrome (31613).

The spelling of 155230061 in words is "one hundred fifty-five million, two hundred thirty thousand, sixty-one".