35138431 has 2 divisors, whose sum is σ = 35138432. Its totient is φ = 35138430.

The previous prime is 35138423. The next prime is 35138449. The reversal of 35138431 is 13483153.

It is a weak prime.

It is an emirp because it is prime and its reverse (13483153) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 35138431 - 2³ = 35138423 is a prime.

It is a super-2 number, since 2×35138431² = 2469418666283522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 35138431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35138471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17569215 + 17569216.

It is an arithmetic number, because the mean of its divisors is an integer number (17569216).

Almost surely, 2^35138431 is an apocalyptic number.

35138431 is a deficient number, since it is larger than the sum of its proper divisors (1).

35138431 is an equidigital number, since it uses as much as digits as its factorization.

35138431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 35138431 is about 5927.7677923481. The cubic root of 35138431 is about 327.5373179704.

The spelling of 35138431 in words is "thirty-five million, one hundred thirty-eight thousand, four hundred thirty-one".