245262726154 has 4 divisors (see below), whose sum is σ = 367894089234. Its totient is φ = 122631363076.

The previous prime is 245262726143. The next prime is 245262726157. The reversal of 245262726154 is 451627262542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 228030125625 + 17232600529 = 477525^2 + 131273^2 .

It is not an unprimeable number, because it can be changed into a prime (245262726157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61315681537 + ... + 61315681540.

Almost surely, 2^245262726154 is an apocalyptic number.

245262726154 is a deficient number, since it is larger than the sum of its proper divisors (122631363080).

245262726154 is a wasteful number, since it uses less digits than its factorization.

245262726154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122631363079.

The product of its digits is 1612800, while the sum is 46.

Adding to 245262726154 its reverse (451627262542), we get a palindrome (696889988696).

The spelling of 245262726154 in words is "two hundred forty-five billion, two hundred sixty-two million, seven hundred twenty-six thousand, one hundred fifty-four".