145145047377 has 32 divisors (see below), whose sum is σ = 213288090624. Its totient is φ = 87063992000.

The previous prime is 145145047373. The next prime is 145145047429. The reversal of 145145047377 is 773740541541.

It is a cyclic number.

It is not a de Polignac number, because 145145047377 - 2² = 145145047373 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145145047373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11749318 + ... + 11761664.

It is an arithmetic number, because the mean of its divisors is an integer number (6665252832).

Almost surely, 2^145145047377 is an apocalyptic number.

It is an amenable number.

145145047377 is a deficient number, since it is larger than the sum of its proper divisors (68143043247).

145145047377 is a wasteful number, since it uses less digits than its factorization.

145145047377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15989.

The product of its (nonzero) digits is 1646400, while the sum is 48.

The spelling of 145145047377 in words is "one hundred forty-five billion, one hundred forty-five million, forty-seven thousand, three hundred seventy-seven".