145511420431 has 8 divisors (see below), whose sum is σ = 163517850720. Its totient is φ = 128478310752.

The previous prime is 145511420407. The next prime is 145511420501. The reversal of 145511420431 is 134024115541.

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

It is a cyclic number.

It is not a de Polignac number, because 145511420431 - 2⁹ = 145511419919 is a prime.

It is a super-2 number, since 2×145511420431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145511420393 and 145511420402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145511421431) 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, 243329836 + ... + 243330433.

It is an arithmetic number, because the mean of its divisors is an integer number (20439731340).

Almost surely, 2^145511420431 is an apocalyptic number.

145511420431 is a deficient number, since it is larger than the sum of its proper divisors (18006430289).

145511420431 is a wasteful number, since it uses less digits than its factorization.

145511420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486660305.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 145511420431 its reverse (134024115541), we get a palindrome (279535535972).

The spelling of 145511420431 in words is "one hundred forty-five billion, five hundred eleven million, four hundred twenty thousand, four hundred thirty-one".