145746137247 has 8 divisors (see below), whose sum is σ = 205759252656. Its totient is φ = 91448556672.

The previous prime is 145746137239. The next prime is 145746137263. The reversal of 145746137247 is 742731647541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145746137247 - 2³ = 145746137239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 2857767397 = 145746137247 / (1 + 4 + 5 + 7 + 4 + 6 + 1 + 3 + 7 + 2 + 4 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 145746137247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145746137237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428883648 + ... + 1428883749.

It is an arithmetic number, because the mean of its divisors is an integer number (25719906582).

Almost surely, 2^145746137247 is an apocalyptic number.

145746137247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

145746137247 is a deficient number, since it is larger than the sum of its proper divisors (60013115409).

145746137247 is a wasteful number, since it uses less digits than its factorization.

145746137247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857767417.

The product of its digits is 3951360, while the sum is 51.

The spelling of 145746137247 in words is "one hundred forty-five billion, seven hundred forty-six million, one hundred thirty-seven thousand, two hundred forty-seven".