1954252379 has 2 divisors, whose sum is σ = 1954252380. Its totient is φ = 1954252378.

The previous prime is 1954252361. The next prime is 1954252393. The reversal of 1954252379 is 9732524591.

It is a strong prime.

It is an emirp because it is prime and its reverse (9732524591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1954252379 - 2⁸ = 1954252123 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1954252579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977126189 + 977126190.

It is an arithmetic number, because the mean of its divisors is an integer number (977126190).

Almost surely, 2^1954252379 is an apocalyptic number.

1954252379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954252379 is an equidigital number, since it uses as much as digits as its factorization.

1954252379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 47.

The square root of 1954252379 is about 44206.9268214835. The cubic root of 1954252379 is about 1250.2404612597.

The spelling of 1954252379 in words is "one billion, nine hundred fifty-four million, two hundred fifty-two thousand, three hundred seventy-nine".