165401142 has 32 divisors (see below), whose sum is σ = 347300352. Its totient is φ = 52413504.

The previous prime is 165401141. The next prime is 165401147. The reversal of 165401142 is 241104561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165401141) 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, 19458 + ... + 26634.

It is an arithmetic number, because the mean of its divisors is an integer number (10853136).

Almost surely, 2^165401142 is an apocalyptic number.

165401142 is an abundant number, since it is smaller than the sum of its proper divisors (181899210).

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

165401142 is a wasteful number, since it uses less digits than its factorization.

165401142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7372.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 165401142 is about 12860.8375310475. The cubic root of 165401142 is about 548.9247776009.

The spelling of 165401142 in words is "one hundred sixty-five million, four hundred one thousand, one hundred forty-two".