145442211251 has 8 divisors (see below), whose sum is σ = 148649402880. Its totient is φ = 142239714568.

The previous prime is 145442211241. The next prime is 145442211253. The reversal of 145442211251 is 152112244541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145442211251 is a prime.

It is a super-3 number, since 3×145442211251³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145442211253) 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, 1111061 + ... + 1235046.

It is an arithmetic number, because the mean of its divisors is an integer number (18581175360).

Almost surely, 2^145442211251 is an apocalyptic number.

145442211251 is a deficient number, since it is larger than the sum of its proper divisors (3207191629).

145442211251 is a wasteful number, since it uses less digits than its factorization.

145442211251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347473.

The product of its digits is 12800, while the sum is 32.

Adding to 145442211251 its reverse (152112244541), we get a palindrome (297554455792).

The spelling of 145442211251 in words is "one hundred forty-five billion, four hundred forty-two million, two hundred eleven thousand, two hundred fifty-one".