155232342 has 16 divisors (see below), whose sum is σ = 344960880. Its totient is φ = 51744096.

The previous prime is 155232293. The next prime is 155232347. The reversal of 155232342 is 243232551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155232347) 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, 1437283 + ... + 1437390.

It is an arithmetic number, because the mean of its divisors is an integer number (21560055).

Almost surely, 2^155232342 is an apocalyptic number.

155232342 is an abundant number, since it is smaller than the sum of its proper divisors (189728538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155232342 is a wasteful number, since it uses less digits than its factorization.

155232342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874684 (or 2874678 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 155232342 is about 12459.2271830961. The cubic root of 155232342 is about 537.4368032423.

Adding to 155232342 its reverse (243232551), we get a palindrome (398464893).

The spelling of 155232342 in words is "one hundred fifty-five million, two hundred thirty-two thousand, three hundred forty-two".