145724437954 has 8 divisors (see below), whose sum is σ = 231444695628. Its totient is φ = 68576206080.

The previous prime is 145724437927. The next prime is 145724438003. The reversal of 145724437954 is 459734427541.

It can be written as a sum of positive squares in 2 ways, for example, as 145026157329 + 698280625 = 380823^2 + 26425^2 .

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

It is a super-2 number, since 2×145724437954² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145724437895 and 145724437904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143006407 + ... + 2143006474.

Almost surely, 2^145724437954 is an apocalyptic number.

145724437954 is a deficient number, since it is larger than the sum of its proper divisors (85720257674).

145724437954 is a wasteful number, since it uses less digits than its factorization.

145724437954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286012900.

The product of its digits is 16934400, while the sum is 55.

The spelling of 145724437954 in words is "one hundred forty-five billion, seven hundred twenty-four million, four hundred thirty-seven thousand, nine hundred fifty-four".