742212537 has 16 divisors (see below), whose sum is σ = 1143087552. Its totient is φ = 423365120.

The previous prime is 742212529. The next prime is 742212547. The reversal of 742212537 is 735212247.

It is a cyclic number.

It is not a de Polignac number, because 742212537 - 2³ = 742212529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 742212498 and 742212507.

It is not an unprimeable number, because it can be changed into a prime (742212517) 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, 660948 + ... + 662069.

It is an arithmetic number, because the mean of its divisors is an integer number (71442972).

Almost surely, 2^742212537 is an apocalyptic number.

It is an amenable number.

742212537 is a deficient number, since it is larger than the sum of its proper divisors (400875015).

742212537 is a wasteful number, since it uses less digits than its factorization.

742212537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323048.

The product of its digits is 23520, while the sum is 33.

The square root of 742212537 is about 27243.5779037923. The cubic root of 742212537 is about 905.4047361948.

The spelling of 742212537 in words is "seven hundred forty-two million, two hundred twelve thousand, five hundred thirty-seven".