155961354 has 16 divisors (see below), whose sum is σ = 313508448. Its totient is φ = 51722832.

The previous prime is 155961347. The next prime is 155961359. The reversal of 155961354 is 453169551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (155961359) 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, 64792 + ... + 67155.

It is an arithmetic number, because the mean of its divisors is an integer number (19594278).

Almost surely, 2^155961354 is an apocalyptic number.

155961354 is an abundant number, since it is smaller than the sum of its proper divisors (157547094).

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

155961354 is a wasteful number, since it uses less digits than its factorization.

155961354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132149.

The product of its digits is 81000, while the sum is 39.

The square root of 155961354 is about 12488.4488228122. The cubic root of 155961354 is about 538.2768046241.

The spelling of 155961354 in words is "one hundred fifty-five million, nine hundred sixty-one thousand, three hundred fifty-four".