20374351 has 2 divisors, whose sum is σ = 20374352. Its totient is φ = 20374350.

The previous prime is 20374339. The next prime is 20374357. The reversal of 20374351 is 15347302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20374351 - 2¹⁹ = 19850063 is a prime.

It is a super-2 number, since 2×20374351² = 830228357342402, which contains 22 as substring.

It is equal to p_1292830 and since 20374351 and 1292830 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20374357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10187175 + 10187176.

It is an arithmetic number, because the mean of its divisors is an integer number (10187176).

Almost surely, 2^20374351 is an apocalyptic number.

20374351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20374351 is an equidigital number, since it uses as much as digits as its factorization.

20374351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 20374351 is about 4513.7956311734. The cubic root of 20374351 is about 273.1248785754.

The spelling of 20374351 in words is "twenty million, three hundred seventy-four thousand, three hundred fifty-one".