1436249497 has 4 divisors (see below), whose sum is σ = 1436386176. Its totient is φ = 1436112820.

The previous prime is 1436249473. The next prime is 1436249527. The reversal of 1436249497 is 7949426341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7949426341 = 31793 ⋅250037.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1436249497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1436249497.

It is not an unprimeable number, because it can be changed into a prime (1436249417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51133 + ... + 74074.

It is an arithmetic number, because the mean of its divisors is an integer number (359096544).

Almost surely, 2^1436249497 is an apocalyptic number.

It is an amenable number.

1436249497 is a deficient number, since it is larger than the sum of its proper divisors (136679).

1436249497 is a wasteful number, since it uses less digits than its factorization.

1436249497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136678.

The product of its digits is 1306368, while the sum is 49.

The square root of 1436249497 is about 37897.8824870203. The cubic root of 1436249497 is about 1128.2620049403.

The spelling of 1436249497 in words is "one billion, four hundred thirty-six million, two hundred forty-nine thousand, four hundred ninety-seven".