445155142 has 32 divisors (see below), whose sum is σ = 721198080. Its totient is φ = 205410240.

The previous prime is 445155101. The next prime is 445155143. The reversal of 445155142 is 241551544.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445155143) 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, 501423 + ... + 502309.

It is an arithmetic number, because the mean of its divisors is an integer number (22537440).

Almost surely, 2^445155142 is an apocalyptic number.

445155142 is a deficient number, since it is larger than the sum of its proper divisors (276042938).

445155142 is a wasteful number, since it uses less digits than its factorization.

445155142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236.

The product of its digits is 16000, while the sum is 31.

The square root of 445155142 is about 21098.7000073464. The cubic root of 445155142 is about 763.5493845490.

The spelling of 445155142 in words is "four hundred forty-five million, one hundred fifty-five thousand, one hundred forty-two".