1295019541 has 2 divisors, whose sum is σ = 1295019542. Its totient is φ = 1295019540.

The previous prime is 1295019469. The next prime is 1295019547. The reversal of 1295019541 is 1459105921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1073872900 + 221146641 = 32770^2 + 14871^2 .

It is a cyclic number.

It is not a de Polignac number, because 1295019541 - 2⁷ = 1295019413 is a prime.

It is a super-2 number, since 2×1295019541² = 3354151223143701362, 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 1295019541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1295019547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647509770 + 647509771.

It is an arithmetic number, because the mean of its divisors is an integer number (647509771).

Almost surely, 2^1295019541 is an apocalyptic number.

It is an amenable number.

1295019541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295019541 is an equidigital number, since it uses as much as digits as its factorization.

1295019541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 1295019541 is about 35986.3799374152. The cubic root of 1295019541 is about 1089.9973461765.

The spelling of 1295019541 in words is "one billion, two hundred ninety-five million, nineteen thousand, five hundred forty-one".