424155031 has 4 divisors (see below), whose sum is σ = 446479000. Its totient is φ = 401831064.

The previous prime is 424155019. The next prime is 424155077. The reversal of 424155031 is 130551424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 424155031 - 2¹¹ = 424152983 is a prime.

It is a super-2 number, since 2×424155031² = 359814980645221922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 424154987 and 424155005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424155931) 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, 11161956 + ... + 11161993.

It is an arithmetic number, because the mean of its divisors is an integer number (111619750).

Almost surely, 2^424155031 is an apocalyptic number.

424155031 is a deficient number, since it is larger than the sum of its proper divisors (22323969).

424155031 is a wasteful number, since it uses less digits than its factorization.

424155031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22323968.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 424155031 is about 20595.0244233893. The cubic root of 424155031 is about 751.3487026957.

The spelling of 424155031 in words is "four hundred twenty-four million, one hundred fifty-five thousand, thirty-one".