42151903 has 8 divisors (see below), whose sum is σ = 43158528. Its totient is φ = 41149944.

The previous prime is 42151897. The next prime is 42151927. The reversal of 42151903 is 30915124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42151903 - 2⁹ = 42151391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42151933) 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, 22750 + ... + 24532.

It is an arithmetic number, because the mean of its divisors is an integer number (5394816).

Almost surely, 2^42151903 is an apocalyptic number.

42151903 is a deficient number, since it is larger than the sum of its proper divisors (1006625).

42151903 is a wasteful number, since it uses less digits than its factorization.

42151903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 42151903 is about 6492.4496917573. The cubic root of 42151903 is about 348.0212228877.

The spelling of 42151903 in words is "forty-two million, one hundred fifty-one thousand, nine hundred three".