42119091 has 24 divisors (see below), whose sum is σ = 69814784. Its totient is φ = 23969520.

The previous prime is 42119089. The next prime is 42119101. The reversal of 42119091 is 19091124.

42119091 = 1728² + 1729² + ... + 1741².

It is not a de Polignac number, because 42119091 - 2¹ = 42119089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42119071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15840 + ... + 18306.

Almost surely, 2^42119091 is an apocalyptic number.

42119091 is a deficient number, since it is larger than the sum of its proper divisors (27695693).

42119091 is a wasteful number, since it uses less digits than its factorization.

42119091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2748 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 42119091 is about 6489.9222645576. The cubic root of 42119091 is about 347.9308969012.

The spelling of 42119091 in words is "forty-two million, one hundred nineteen thousand, ninety-one".