69249541 has 4 divisors (see below), whose sum is σ = 69292000. Its totient is φ = 69207084.

The previous prime is 69249529. The next prime is 69249559. The reversal of 69249541 is 14594296.

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 69249541 - 2¹³ = 69241349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69249494 and 69249503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69249511) 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, 18681 + ... + 22078.

It is an arithmetic number, because the mean of its divisors is an integer number (17323000).

Almost surely, 2^69249541 is an apocalyptic number.

It is an amenable number.

69249541 is a deficient number, since it is larger than the sum of its proper divisors (42459).

69249541 is a wasteful number, since it uses less digits than its factorization.

69249541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42458.

The product of its digits is 77760, while the sum is 40.

The square root of 69249541 is about 8321.6309098638. The cubic root of 69249541 is about 410.6504468275.

The spelling of 69249541 in words is "sixty-nine million, two hundred forty-nine thousand, five hundred forty-one".