1354021507 has 2 divisors, whose sum is σ = 1354021508. Its totient is φ = 1354021506.

The previous prime is 1354021469. The next prime is 1354021517. The reversal of 1354021507 is 7051204531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1354021507 is a prime.

It is not a weakly prime, because it can be changed into another prime (1354021517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677010753 + 677010754.

It is an arithmetic number, because the mean of its divisors is an integer number (677010754).

Almost surely, 2^1354021507 is an apocalyptic number.

1354021507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354021507 is an equidigital number, since it uses as much as digits as its factorization.

1354021507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1354021507 is about 36797.0312253584. The cubic root of 1354021507 is about 1106.3057956388.

The spelling of 1354021507 in words is "one billion, three hundred fifty-four million, twenty-one thousand, five hundred seven".