1265464153 has 2 divisors, whose sum is σ = 1265464154. Its totient is φ = 1265464152.

The previous prime is 1265464147. The next prime is 1265464177. The reversal of 1265464153 is 3514645621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 740275264 + 525188889 = 27208^2 + 22917^2 .

It is a cyclic number.

It is not a de Polignac number, because 1265464153 - 2¹⁷ = 1265333081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1265464103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632732076 + 632732077.

It is an arithmetic number, because the mean of its divisors is an integer number (632732077).

Almost surely, 2^1265464153 is an apocalyptic number.

It is an amenable number.

1265464153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265464153 is an equidigital number, since it uses as much as digits as its factorization.

1265464153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 37.

The square root of 1265464153 is about 35573.3629700651. The cubic root of 1265464153 is about 1081.6413522797.

It can be divided in two parts, 126 and 5464153, that multiplied together give a triangular number (688483278 = T₃₇₁₀₇).

The spelling of 1265464153 in words is "one billion, two hundred sixty-five million, four hundred sixty-four thousand, one hundred fifty-three".