142165541 has 16 divisors (see below), whose sum is σ = 164451456. Its totient is φ = 120384576.

The previous prime is 142165531. The next prime is 142165547. The reversal of 142165541 is 145561241.

It is a cyclic number.

It is not a de Polignac number, because 142165541 - 2²⁶ = 75056677 is a prime.

It is a super-2 number, since 2×142165541² = 40422082095645362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142165547) 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, 304190 + ... + 304656.

It is an arithmetic number, because the mean of its divisors is an integer number (10278216).

Almost surely, 2^142165541 is an apocalyptic number.

It is an amenable number.

142165541 is a deficient number, since it is larger than the sum of its proper divisors (22285915).

142165541 is a wasteful number, since it uses less digits than its factorization.

142165541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908.

The product of its digits is 4800, while the sum is 29.

The square root of 142165541 is about 11923.3192106896. The cubic root of 142165541 is about 521.9129993534.

The spelling of 142165541 in words is "one hundred forty-two million, one hundred sixty-five thousand, five hundred forty-one".