145772240787 has 16 divisors (see below), whose sum is σ = 221226166560. Its totient is φ = 94811212800.

The previous prime is 145772240749. The next prime is 145772241007. The reversal of 145772240787 is 787042277541.

It is a happy number.

145772240787 is a `hidden beast` number, since 1 + 4 + 577 + 22 + 40 + 7 + 8 + 7 = 666.

It is not a de Polignac number, because 145772240787 - 2⁸ = 145772240531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145772240737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65840014 + ... + 65842227.

It is an arithmetic number, because the mean of its divisors is an integer number (13826635410).

Almost surely, 2^145772240787 is an apocalyptic number.

145772240787 is a deficient number, since it is larger than the sum of its proper divisors (75453925773).

145772240787 is a wasteful number, since it uses less digits than its factorization.

145772240787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131682291 (or 131682285 counting only the distinct ones).

The product of its (nonzero) digits is 6146560, while the sum is 54.

The spelling of 145772240787 in words is "one hundred forty-five billion, seven hundred seventy-two million, two hundred forty thousand, seven hundred eighty-seven".