2151003397 has 2 divisors, whose sum is σ = 2151003398. Its totient is φ = 2151003396.

The previous prime is 2151003383. The next prime is 2151003409. The reversal of 2151003397 is 7933001512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2011432801 + 139570596 = 44849^2 + 11814^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151003397 - 2²⁷ = 2016785669 is a prime.

It is a super-2 number, since 2×2151003397² = 9253631227811079218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151003367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075501698 + 1075501699.

It is an arithmetic number, because the mean of its divisors is an integer number (1075501699).

Almost surely, 2^2151003397 is an apocalyptic number.

It is an amenable number.

2151003397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151003397 is an equidigital number, since it uses as much as digits as its factorization.

2151003397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 2151003397 is about 46378.9111234837. The cubic root of 2151003397 is about 1290.8636319686.

The spelling of 2151003397 in words is "two billion, one hundred fifty-one million, three thousand, three hundred ninety-seven".