42311953 has 4 divisors (see below), whose sum is σ = 42907968. Its totient is φ = 41715940.

The previous prime is 42311923. The next prime is 42311981. The reversal of 42311953 is 35911324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42311953 - 2⁵ = 42311921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42311903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297901 + ... + 298042.

It is an arithmetic number, because the mean of its divisors is an integer number (10726992).

Almost surely, 2^42311953 is an apocalyptic number.

It is an amenable number.

42311953 is a deficient number, since it is larger than the sum of its proper divisors (596015).

42311953 is an equidigital number, since it uses as much as digits as its factorization.

42311953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596014.

The product of its digits is 3240, while the sum is 28.

The square root of 42311953 is about 6504.7638696574. The cubic root of 42311953 is about 348.4611432930.

It can be divided in two parts, 42311 and 953, that added together give a square (43264 = 208²).

The spelling of 42311953 in words is "forty-two million, three hundred eleven thousand, nine hundred fifty-three".